全密封镍镉蓄电池信号电极的性能改进研究

Performance improvement of signal electrode and auxiliary electrode in full sealed Ni-Cd battery

增大信号电极和辅助电极尺寸,信号电极性能出现明显提升,外接电阻阻值由70 Ω降为40 Ω。将信号电极和辅助电极在电池中对称放置,信号电极性能不再受电池搁置状态影响。调低控制信号电压至0.07 V,按照低轨卫星用充放电循环制度对实验电池进行测试,测试结果证明实验电池可以在此充放电循环制度下正常工作,充放比为0.99 ～ 1.02。

The performance of the signal electrode could be greatly improved by increasing the area of the signal electrode and the auxiliary electrode. Furthermore, the external resistance could be decreased from 70 Ω to 40 Ω. The performance of the signal electrode had no relation to the different directions of the battery when placed symmetrically the signal electrode and the auxiliary electrode in the cell. The controlled signal voltage was decreased to 0.07V, and the cell was tested with the charge-discharge cycle system in low earth orbit satellite. The result reveals that the test cell can work in normal, while the charge and discharge ratio is 0.99 to 1.02.